canale-n 1

1. Search for heavy neutral leptons in π⁺ decays to positrons
2. First detection of a tagged neutrino in the NA62 experiment
3. Observation of the K+→π+νν¯ decay and measurement of its branching ratio
4. Search for hadronic decays of feebly-interacting particles at NA62
5. Searches for hidden sectors using K⁺→ π⁺X decays
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